Ullrich Böhme is a German organist. He was the organist of the Thomaskirche in Leipzig from 1985 to 2021. Böhme grew up in Rothenkirchen, Vogtland. Starting at the age of 13, he became an organist
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96dca8395a9b1751484b7dab80404b1eea55ab8cc1cacc578c633e040f67f17. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f74a967-f1bb-4a9a-b07c-6d675e519b28.json and https://artists.proofprofile.net/proofs/artist/6f74a967-f1bb-4a9a-b07c-6d675e519b28.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Die Sauer-Orgel der Thomaskirche zu Leipzig
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff0e7b0974c166c7e092547957b512c4403716f8203feba509420649669fb33. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN420810007 — a six-check JSON result.
J. S. Bach: Große Präludien und Fugen (Major preludes and fugues)
Präludium und Fuge E-Moll BWV 548: 1. Präludium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e6c3c1a558ecfed50b89805a12d811da7720bd8ba4815b2472aac91b19ee96. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421914001 — a six-check JSON result.
Präludium und Fuge E-Moll BWV 548: 2. Fuge
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Präludium und Fuge C-Dur BWV 545: 1. Präludium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129f63f67ec91dc190c310dc3d4246062b3262a062cd71792a9cf9037c7bf1de. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421914003 — a six-check JSON result.
Präludium und Fuge C-Dur BWV 545: 2. Fuge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2246626ed107b771d3b97a86e6b6f927fb40ff36fa43833a0f4af44c4fcbc6. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421914004 — a six-check JSON result.
Präludium und Fuge C-Moll BWV 546: 1. Präludium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2454f244587aa24f046e7c6132fd34f57ccd7804ae29f23e0466974c3f8dce. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421914005 — a six-check JSON result.
Präludium und Fuge C-Moll BWV 546: 2. Fuge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209f614dcd38df55db6d5105658cbe3a1f4cbeb8dc282e56c2b92aabfca492ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421914006 — a six-check JSON result.
Präludium und Fuge D-Dur BWV 532: 2. Fuge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bc1c4941d8507c5f3fd913b3dd1d1f81c937b0bd61ed63970a55371d77030a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421914014 — a six-check JSON result.
Thomasorganist Ullrich Böhme: Die Orgeln der Thomaskirche zu Leipzig (Thomas Organist Ullrich Böhme: The Organs of St Thomas, Leipzig)
Max Reger: Geistliche Lieder (Orgelfantasien aus der Thomaskirche Leipzig)
Johann Sebastian Bach: Sechs Sonaten - Six Sonatas BWV 525-530 (Thomasorganist Ullrich Böhme at the Baroque Organs in Naumburg, Dresden, Freiberg, Ottobeuren & Leipzig, St Thomas)
Triosonate für Orgel No. 4 E-Moll BWV 528: 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdc78470c89a2e3f5e358dec3c4b1937509e5313ac739120cab8c1106eaa472. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN421501008 — a six-check JSON result.
Johann Sebastian Bach: Die Leipziger Choräle BWV 651-668
Johann Sebastian Bach & Albert Schweitzer: Works for Organ
Mendelssohn: Organ Sonatas, Op. 65, Nos. 1-6
Die neue Bachorgel in der Thomaskirche zu Leipzig
Der späte Bach (Ullrich Böhme an der Bach-Orgel in der Thomaskirche zu Leipzig)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6be388c818ad1f59ad807f860fedeeef53c131215a220dd7e08a0ca1b17fb8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740423009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73322de555d1a88a8a752feb565468361140a493621fcf344523546774d512e0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740423011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc824099556202f9d84efd08876325f7e53352c6544be468a9436b43ae6368e2c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740423026 — a six-check JSON result.
Johann Sebastian Bach: Orgelmesse - Dritter Teil der Clavierübung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54144a0e11d6f166ce995cb26d9aceafbc98668a6319eed0e76c4d9708a52b1. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740603001 — a six-check JSON result.
Herr Christ, Der Ein'ge Gottessohn Oder Herr Gott, Nun Sei Gepreiset, BWV 601
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5129dd817f046b74d0be1e7c3b3a0ff68e2125bdbe04dbdef4ff3ccde82eee. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740603003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99196eed0525e5ec053759c3b1f7e8afe06f45d9d0568679405fae4d358a3b2a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740603016 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554f39d2d71854bdc2ca69e643711c5fa0ab7007d9e074197482bf790a273b1d. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740603017 — a six-check JSON result.
O Mensch, Bewein Dein Sünde Gro, BWV 622
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2876eeac2db22460e52ef9f638335f6c2a9b42a5ff576e9d42637384400708a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740603024 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0879e8b7e839b7c1b47f39e73cd99c4b25e2024280e37d463b67f2cfcf9154c9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740603030 — a six-check JSON result.
Wer Nur Den Lieben Gott Lät Walten, BWV 642
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40603ef2fd93204ecf45f9c23df5d3d52fb1a7e034946ce747f96cb3fd8a66d3. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEW740603045 — a six-check JSON result.
Die Orgeln des Gottfried Silbermann, Vol. 5 (Die Orgeln in Forchheim, Pfaffroda, Nassau und Ponitz)